People tell me my son should do baby modeling. I don't know...?

Jaiden is a beautiful child. It is up to you whether to do modeling or pageants. As with everything in life, there are pros and cons. You would also have to think of his mental well being in the long run. I would think it could be costly to get started. The choice is yours. Follow your heart, do what you think is right. But, always think about his future and well being.